Type Exhaust Manifold; Items Included Gasket, Mounting Hardware, Stud, Nut, Flange; Material Cast Iron; Placement on Vehicle Left, Right, (Driver & Passenger Side); MPN12562236, 12562333, 12564157, 12564161, 12605246; OE/OEM Part Number 12556078, 12562235, 12562330, 12564155; Color Natural; Interchange Part Number 674-522, 674-525; Superseded Part Number 12564159, 12571678, 12571679, 12602037; Compatible Make Cadillac, For Chevrolet, GMC; Model Escalade, Escalade EXT, Express 2500, Express 3500; Model-2 Silverado 1500, Silverado 1500 HD, Silverado 2500; Model-3 Silverado 2500 HD, Silverado 3500, Suburban 1500; Model-4 Suburban 2500, Tahoe, Savana 2500, Savana 3500, Sierra 1500; Model-5 Sierra 1500 HD, Sierra 2500, Sierra 2500 HD; Model-6 Sierra 3500, Yukon, Yukon XL 1500, Yukon XL 2500; Year 1999-2003; Engine V8 6.0L, V8 4.8L, V8 5.3L;